I get this error no matter what troubleshooting steps I try, including downloading with different browsers and attempting to extract the data within the disk image using a third-party utility rather than the native macOS disk image mounter.“makemkv_v1.17.6_osx.dmg” is damaged and can’t be opened. You should move it to the Trash.
I'm on an M2 Pro 16" MacBook Pro running macOS Sonoma 14.2.1.
Just a heads up to the dev that the DMG needs to be remade and reuploaded.